2 * Copyright (c) 2015 The FreeBSD Foundation
4 * This software was developed by Semihalf under
5 * the sponsorship of the FreeBSD Foundation.
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 #ifndef _GIC_V3_VAR_H_
30 #define _GIC_V3_VAR_H_
32 #include <arm/arm/gic_common.h>
34 #define GIC_V3_DEVSTR "ARM Generic Interrupt Controller v3.0"
36 DECLARE_CLASS(gic_v3_driver);
41 struct resource *res; /* mem resource for redist */
42 vm_offset_t pend_base;
44 bool lpi_enabled; /* redist LPI configured? */
49 * Re-Distributor region description.
50 * We will have few of those depending
51 * on the #redistributor-regions property in FDT.
53 struct resource ** regions;
54 /* Number of Re-Distributor regions */
56 /* Per-CPU Re-Distributor data */
57 struct redist_pcpu *pcpu;
62 struct resource ** gic_res;
65 struct resource * gic_dist;
67 struct gic_redists gic_redists;
69 /* Message Based Interrupts */
72 struct mtx gic_mbi_mtx;
80 boolean_t gic_registered;
83 device_t *gic_children;
84 struct intr_pic *gic_pic;
85 struct gic_v3_irqsrc *gic_irqs;
88 struct arm_gic_range * ranges;
91 struct gic_v3_devinfo {
97 #define GIC_INTR_ISRC(sc, irq) (&sc->gic_irqs[irq].gi_isrc)
99 MALLOC_DECLARE(M_GIC_V3);
102 #define GICV3_IVAR_NIRQS 1000
103 /* 1001 was GICV3_IVAR_REDIST_VADDR */
104 #define GICV3_IVAR_REDIST 1002
106 __BUS_ACCESSOR(gicv3, nirqs, GICV3, NIRQS, u_int);
107 __BUS_ACCESSOR(gicv3, redist, GICV3, REDIST, void *);
110 int gic_v3_attach(device_t dev);
111 int gic_v3_detach(device_t dev);
112 int arm_gic_v3_intr(void *);
114 uint32_t gic_r_read_4(device_t, bus_size_t);
115 uint64_t gic_r_read_8(device_t, bus_size_t);
116 void gic_r_write_4(device_t, bus_size_t, uint32_t var);
117 void gic_r_write_8(device_t, bus_size_t, uint64_t var);
120 * GIC Distributor accessors.
121 * Notice that only GIC sofc can be passed.
123 #define gic_d_read(sc, len, reg) \
125 bus_read_##len(sc->gic_dist, reg); \
128 #define gic_d_write(sc, len, reg, val) \
130 bus_write_##len(sc->gic_dist, reg, val);\
133 /* GIC Re-Distributor accessors (per-CPU) */
134 #define gic_r_read(sc, len, reg) \
136 u_int cpu = PCPU_GET(cpuid); \
139 (sc)->gic_redists.pcpu[cpu].res, \
140 (sc)->gic_redists.pcpu[cpu].offset + (reg)); \
143 #define gic_r_write(sc, len, reg, val) \
145 u_int cpu = PCPU_GET(cpuid); \
148 (sc)->gic_redists.pcpu[cpu].res, \
149 (sc)->gic_redists.pcpu[cpu].offset + (reg), \
153 #endif /* _GIC_V3_VAR_H_ */